What accessories do I need for my homemade DJ 12" Mixer flight case?

I have a Numark M6 USB and made my basic design and have all my peices cut out. What I was wondering is where I can get some hinges for the back where they can hook onto each other so that I can take the top right off while using it. Also should I use auto carpet on the out side or just paint it and put the metal edging on?